A worker’s wage in 1996 was Rs.180. What should be

What will come in place of the question mark (?) in the following series?

1223, ?, 1308, 1553, 1393, 1638

What will come in place of the question mark (?) in the following series?

4.5, 8, 15, 29, ?, 113

What value should come in the place of (?) in the following number series?

1.5, 2.5, 4, 6, ?, 11.5

51      52       48      57       ?       66       30

75,  80,  95, ?,  155,  200

What will come in place of the question mark (?) in the following series?

25, 41, 73, ?, 185, 265

4097, ?, 4359, 4493, 4629, 4767

5 6 14 45 ? 925

Find the missing number in the given number series.

 305, 316, 302, ?, 295, 346